Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
German Liver Dumplings
Ingredients
Directions
Prepare the dough
In a bowl, combine the ground liver, soaked bread, egg, salt, pepper, and onion juice.
Mix well and add flour until a paste forms.
Shape the mixture into balls.
Cook
Drop the balls into boiling salted water or water used to boil a soup bone.
Cook for about 20 minutes.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Bread + eggtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Liver + oniontop 15% of all pairsSmell alikelowCooked together1,420 recipes
Shared aroma: furaneol (caramel, strawberry).
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Bread + oniontop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fresh liver
- Provides the main body and rich flavor of the dumplings.
- Bread
- Soaked and squeezed, it adds moisture and softness to the dumpling mixture.
- Egg
- Binds the mixture together so the dumplings hold their shape.
- Flour
- Stiffens the mixture into a paste that can be shaped into balls.
The step that matters
Adding the flour. Too much flour makes the dumplings dense and tough, while too little leaves them too soft to hold their shape in the water.
Swap the onion
How well each one fits the dish's main ingredients (liver, bread, egg, pepper, flour):
- Shallotfits better
- Capsicumfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against liver, bread, egg, pepper, flour. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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